Gutter – Change the space between grid items

gutter determines the space between columns. If the border setting is used, it must be less than or equal to the gutter.

gutter is an integer value and defaults to 5

Gutter 15px

[featured_image_pro gutter=15]

Gutter 15px, border 3px, with captions

[featured_image_pro gutter=15 border=3 showcaptions=true margibottom='10px']

You can also go for a tight look by setting both gutter and margin to 0.

Gutter 0px (with Margin 0px)

[featured_image_pro gutter=0 marginbottom=0]